A student conducted an experiment to observe what happed a plant cell when paced in different solutions. Analyze the following observation of a plant cell. What is the best explanation of the movement of molecules? a normal plant cell is on the left. The plant cell wall is visible, and the internal structure fills the cell up to the cell wall. In the middle is an arrow pointing from left to right. On the right is a plant cell. This plant cell has a cell wall the same size as the first plant cell, but the internal structures are shrunken in comparison to the first cell. Water is diffusing in and out of the cell at the same rate. Water is moving into the cell at a faster rate than out of the cell. Water is moving out of the cell at a faster rate than into the cell. Water is only moving out of the cell.